MongoCode::__construct

(PECL mongo >= 0.8.3)

Creates a new code object

public MongoCode::__construct ( string $code [, array $scope = array() ] )

Parameters:

code

A string of code.

scope

The scope to use for the code.

Returns:

Returns a new code object.

Examples:

MongoCode::__construct() example

<?php
 
$code = new MongoCode('function() { '.
    'for(i=0;i<10;i++) {'.
        'db.foo.update({z : i}, {z : x});'.
    '}'.
    'return x-1;'.
 '}', array("x" => 4));
var_dump($code);
 
?>

The above example will output something similar to:

object(MongoCode)#1 (2) {
  ["scope"]=>
  array(1) {
    ["x"]=>
    int(4)
  }
  ["code"]=>
  string(80) "function() { for(i=0;i<10;i++) { db.foo.update({z : i}, {z : x}); } return x-1; }"
}

Using MongoCode with $where

This example queries a collection for elements where the 'x' fields is less than $y. Notice that PHP objects can be passed into the JavaScript scope and that the JavaScript function returns a boolean.

<?php
 
$cursor = $collection->find(array('$where' => new MongoCode('function() { return this.x < y; }', array('y'=>$y))));
 
?>

Links:

http://php.net/manual/en/mongocode.construct.php

doc_php

2025-01-10 15:47:30

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